Abstract
A novel magnetic Co nanoparticle catalyst was prepared by coating Fe304magnetic nanoparticles with tetraethyl orthosilicate functionalized with (3-chloropropyl)trimethoxysilane and 2-amino-5-mercapto-1,3,4-thiadiazole ligands followed by complexation with Co(OAc)4. The catalyst was then characterized and applied for the synthesis of various tetrazoles by the reactions of amines with sodium azide and triethyl orthoformate in solvent-free conditions at 100°C.
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Acknowledgments
The authors are grateful to the Islamic Azad University (Faculty of Sciences, Arak Branch, Arak, Iran), Islamic Azad University (Faculty of Sciences, Hamedan Branch, Hamedan, Iran), and Bu-Ali Sina University (Hamedan, Iran) for financial support of this work.
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Sarrafioun, F., Jamehbozorgi, S. & Ramezani, M. Synthesis of Tetrazoles Catalyzed by Novel Cobalt Magnetic Nanoparticles. Russ J Org Chem 55, 1777–1784 (2019). https://doi.org/10.1134/S1070428019110216
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DOI: https://doi.org/10.1134/S1070428019110216